3 years ago

Given the function f(x) = 3+9(x-1) find the value of f(8)

Mathematics

2 answers:

Juliette [100K]3 years ago

6 0

To solve this, plug in 8 for X

3+9(8-1) then solve

3+9(7)

3+63

66

I hope I've helped!

aleksandr82 [10.1K]3 years ago

3 0

F(8)= 3+9(8-1)
f(8)= 3+63
=66

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John needs to paint one wall in his school. He knows that 1 can of paint covers an area of 24 square feet. John uses a meter sti

laila [671]

The complete question in the attached figure

step 1
find the area of the wall

[area of the wall]=[area of rectangle]+[area of triangle]
[area of the wall]=[3*2]+[3*1/2]----> 7.5 m²

1 m²-------> 10.7639 ft²

area of the wall------> 7.5*10.7639------> 80.73 ft²

we know that
1 can of paint covers an area of --------> 24 ft²
x---------------------------------------------> 80.73 ft²
x=80.73/24---------> x=3.36 can of paints

the answer is
The fewest number of cans is 4